Max missing from home near Porter Hollow & Summit

Rockford Michigan. Max went missing from his home near Porter Hollow and Summit around 7:30 Christmas Eve, We have been looking for him ever since, it is very unlike him to wander. He is friendly, large, fluffy and cream colored. Please let us know if you have seen him, he is dearly missed!! He is the dog on the left in the photo. Please call (six one six) 318-7373 if you see him. Thank you. We are offering a $200 cash reward for his safe return.